Tangerines are a good source of vitamin C, folate and beta-carotene. They also contain some potassium, magnesium and vitamins B1, B2 and B3 and the compounds lutein and zeaxanthin. Tangerine oil, like all citrus oils, has limonene as its major constituent, but also alpha-pinene, myrcene, gamma-terpinene, citronellal, linalool, neral, neryl acetate, geranyl acetate, geraniol, thymol, and carvone.